I have a HTC 8X. Everything worked fine until arund a month ago when I stopped receiving WhatsApp notifications. No tile count, no sound notification, nothing. I now also realized that facebook and Linkedin notifications do not work. I have not changed any setting on the phone. These apps are set to run in the background and I also checked if the apps are set t notify me. they are. Sporadically I receive WhatsApp notification, but 1 out of 100. And it does not depend on whether I am on Wifi or data carrier. Do you know any solution apart from resetting my phone? Thank you for all the help in advance.